2 wans (on sfp and on ether1), one lan (192.168.88.x) and in this lan 2 gateways - first 192.168.88.1 (nat to sftp), second gateway 192.168.88.2 is new and i want to nat from this gw to second wan (ether1). server dhcp is on linux server out of mikrotik. Is it possible to create this ?
I want do manage which station will use wan1 or wan2 by selecting gw 192.168.88.1 or gw 192.168.88.2
Your explanation is weak and almost contradictory.
If you have two lan gateways you actually have two LANs (two subnets).
So you want subnet1 to use ISP1 and you want subent2 to use ISP2.
Do you want any failover scenario ?
What happens if ISP1 is unavailable and what happens if ISP2 is unavailable ( I am assuming they are from two different providers)??
One lan, first address is first gw and second adress will be second gateway.
first wan is connected to sfp1 (working - nat) and second to ethernet1 (out of bridge1).
dhcp server is outside mikrotik (on linux server). I want to manage which wan will be used by lan stationons by selecting manually by users gateway1 or gateway2.